I received my Vivitar 285HV flash yesterday. Surprisingly, the postal office didn't collect any fees on this one. Hmmm... Anyway, the flash unit is huge and, uhm, not pretty but it's more powerful compared to my slick SB-600.
Since we have a 3-day weekend coming, I'll experiment with a 2-flash setup and do some exercises for Strobist.com. I gotta pump my creative juices up!